Delete the old WebSocket implementation.

Source/modules/websockets/WebSocketChannel.cpp

 /*
  * Copyright (C) 2009, 2012 Google Inc.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 20 matching lines @@
 #include "config.h"
 
 #include "modules/websockets/WebSocketChannel.h"
 
 #include "bindings/core/v8/ScriptCallStackFactory.h"
 #include "core/dom/Document.h"
 #include "core/dom/ExecutionContext.h"
 #include "core/inspector/ScriptCallStack.h"
 #include "core/workers/WorkerGlobalScope.h"
 #include "core/workers/WorkerThread.h"
-#include "modules/websockets/MainThreadWebSocketChannel.h"
 #include "modules/websockets/NewWebSocketChannelImpl.h"
 #include "modules/websockets/WebSocketChannelClient.h"
 #include "modules/websockets/WorkerThreadableWebSocketChannel.h"
-#include "platform/RuntimeEnabledFeatures.h"
 
 namespace blink {
 
 WebSocketChannel* WebSocketChannel::create(ExecutionContext* context, WebSocketChannelClient* client)
 {
     ASSERT(context);
     ASSERT(client);
 
     String sourceURL;
     unsigned lineNumber = 0;
     RefPtrWillBeRawPtr<ScriptCallStack> callStack = createScriptCallStack(1, true);
     if (callStack && callStack->size()) {
         sourceURL = callStack->at(0).sourceURL();
         lineNumber = callStack->at(0).lineNumber();
     }
 
     if (context->isWorkerGlobalScope()) {
         WorkerGlobalScope* workerGlobalScope = toWorkerGlobalScope(context);
         return WorkerThreadableWebSocketChannel::create(*workerGlobalScope, client, sourceURL, lineNumber);
     }
 
     Document* document = toDocument(context);
-    if (RuntimeEnabledFeatures::experimentalWebSocketEnabled()) {
-        return NewWebSocketChannelImpl::create(document, client, sourceURL, lineNumber);
-    }
-    return MainThreadWebSocketChannel::create(document, client, sourceURL, lineNumber);
+    return NewWebSocketChannelImpl::create(document, client, sourceURL, lineNumber);
 }
 
 } // namespace blink